also keep in mind that if the very last day to report (7 days after) falls on a weekend and immigration is closed, you have to report before. Monday would be too late, and you have to pay a fine.
speaking of a Thai (motorcycle) license, is the Thai driver's license valid in Vietnam? I see a lot of conflicting answers online. Who has first-hand experience?
keep in mind the branch where you open the account ist the one in charge of you. if you need any documents etc. that will be most likely the branch you have to go to, not others.
If you start reporting online, do you have to continue doing it online in the future or can it be a mix, online and onsite? I guess it can be a mix, not sure, though.